// Note(Robert): This file, which goes with /inc/nav.inc, was found on the web
// somewhere. I don't remember where, but it was advertised as free to use and
// didn't come with a license.

var menu=function(){
        var t=15,z=50,s=6,a;
        function dd(n){this.n=n; this.h=[]; this.c=[]}
        dd.prototype.init=function(p,c){
                a=c; var w=document.getElementById(p), s=w.getElementsByTagName('ul'), l=s.length, i=0;
                for(i;i<l;i++){
                        var h=s[i].parentNode; this.h[i]=h; this.c[i]=s[i];
                        h.onmouseover=new Function(this.n+'.st('+i+',true)');
                        h.onmouseout=new Function(this.n+'.st('+i+')');
                }
        }
        dd.prototype.st=function(x,f){
                var c=this.c[x], h=this.h[x], p=h.getElementsByTagName('a')[0];
                clearInterval(c.t); c.style.overflow='hidden';
                if(f){
                        p.className+=' '+a;
                        if(!c.mh){c.style.display='block'; c.style.height=''; c.mh=c.offsetHeight; c.style.height=0}
                        if(c.mh==c.offsetHeight){c.style.overflow='visible'}
                        else{c.style.zIndex=z; z++; c.t=setInterval(function(){sl(c,1)},t)}
                }else{p.className=p.className.replace(a,''); c.t=setInterval(function(){sl(c,-1)},t)}
        }
        function sl(c,f){
                var h=c.offsetHeight;
                if((h<=0&&f!=1)||(h>=c.mh&&f==1)){
                        if(f==1){c.style.filter=''; c.style.opacity=1; c.style.overflow='visible'}
                        clearInterval(c.t); return
                }
                var d=(f==1)?Math.ceil((c.mh-h)/s):Math.ceil(h/s), o=h/c.mh;
                c.style.opacity=o; c.style.filter='alpha(opacity='+(o*100)+')';
                c.style.height=h+(d*f)+'px'
        }
        return{dd:dd}
}();
